Randall Boggs (called Randy in Monsters University) is one of the two main antagonists in Monsters Inc. He returns in Monsters University. Randall resembles a lizard, with purple and blue skin, three pink antennae and eight limbs, four arms and four legs. Randall is Sulley and Mike’s direct rival and nemesis. Randall reappears in the prequel and instead of being sneaky, evil and impatient, he is now nerdy, shy, and nervous.